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Georgia [21]
4 years ago
5

If the vinegar buret tip were not filled with solution before its initial reading was taken, would the calculated normality of t

he acid be too high, too low, or unaffected? why?
Chemistry
1 answer:
Alexxx [7]4 years ago
8 0
The normality that would be calculated will be to high because the change in volume will be greater than the actual change in volume. if the buret tip is not filled when reading the initial volume, the actual volume should be lesser with that reading. so if you will you the higher reading the change in volume or the volume you use in titration will be higher than the actual
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As you move from row ______ to row ______ in the periodic table, the atomic radius of the elements DECREASES.
Len [333]

Answer:

C) 7 to 1

Explanation:

The periodic trend of Atomic Radii for the Periodic Table of Elements is down and to the left the atomic radii increases.

So, from period 1 to 7 and group 18 to group 1, the atomic radii increases.

The opposite (decreasing) would be from period 7 to 1 and group 1 to group 18.

Therefore, our answer is C.

5 0
3 years ago
Determine the final concentration when 250mL of 3M solution is dilluted to a final volume of 850mL. (Enter Number)​
LenKa [72]

Answer:

M₂ = 0.9 M

Explanation:

Given data:

Initial Volume = V₁ = 250 mL

Initial molarity = M₁= 3 M

Final volume = 850 mL

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Solution:

M₁V₁ = M₂V₂

M₂ = M₁V₁ /V₂

M₂ = 3 M × 250 mL / 850 mL

M₂ = 750 M / 850

M₂ = 0.9 M

7 0
4 years ago
What is the mass in grams of 0.250 mol CH2Cl2?
Orlov [11]

Answer:

21.2 grams CH2Cl2

Explanation:

Number of moles: .25

Molar mass of CH2Cl2: 84.93 g/mol

Mass in grams: 84.93(0.250) = 21.2325

4 0
3 years ago
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zaharov [31]

Answer:

i dont think so

Explanation:

is there a image to explain this ? if so it would help ALOT

8 0
2 years ago
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What type of reaction is this?<br> 2Na(s) + Cl2(g) —&gt; 2NaCl(s)
soldier1979 [14.2K]

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A + X ---> AX

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3 years ago
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